Machine for mounting ornamental composition directly upon circular picture-frames.



Patented Jan. 30, I900.

H0. B lm-W.

F. E; ADAMS.

MINNIE FUN WUUNTING OB-NAIENTAL GDMPUSITION UIRE'BTLY UPI)" CIRCULAR PNSTURE BMGES.

2 Shanta-heat L (Application filed Nov. 18, 1698.)

(W0 Mendel.)

i hWENm UNITED STA'IXES PATENT OFFICE.

FRANK E. ADAMS, OF CHICAGO, ILLINOIS.

NIACHINE FOR MOUNTING ORNAMENT/IL COMPOSITION DIRECTLY UPON CIRCULAR PICTURE-FRAMES.

SPECIFICATION forming part of Letters Patent No. 642,059, dated January 30, 1900.

Application filed November 18, 1898. Serial No.696,748. (No model.)

To all whom it may concern.-

Be it known that I, FRANK E. ADAMS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Machines for Mounting Ornamental Composition Directly Upon Circular Picture-Frames, of which the following is a specification.

My invention relates to means for mount" ing and molding composition for ornamenting picture-frames or the stock from which picture-frames are manufactured; and my object is a construction particularly adapted to use on picture-frames having an annular, ovate, or irregular form, upon which heretofore the composition has been usually mounted by hand instead of direct, as in my machine, the same being fully described hereinafter and illustrated in the accompanying drawings, in which- Figure 1 is a left side elevation, and Fig. 2 a front side elevation, showing the operative parts in the open position ready to receive a picture-frame to be ornamented. Fig. 3 is a plan onan enlarged scale of a portion of the table and front of the frame of the machine, together with the operative parts adapted to.

move and guide the picture-frame, which latter is shown in position ready to be ornamented.

Similar letters indicate like parts'throughout the several views.

In the frame A of the machine is mounted a horizontal shaft B, which is connected by several cog-Wheels with a pulley O, to which power is applied. Shaft B at the front end has firmly mounted thereon a cylindrical roller D, having a series of fine teeth projecting from the periphery, as at D. At E is a shaft mounted to revolve above shaft B, and in order that it may be raised and lowered relative to shaft B has one end connected to a short shaft F by means of the ordinary ballswivel coupling, as shown at F. Short shaft F is geared by a series of four cog-wheels form ing an ordinary expanding gear with shaft B, so that shaft F may be raised and lowered relative to shaft B, yetalways remain in gear therewith. The front end portion of shaft E is mounted in a swivel-box E, which latter is mounted in the sides of a cross-head G, which is fitted to slide in the slotted central portion of the vertical frame H. A strong helical spring I is attached at the top end to frame H and the bottom end to cross-head G and is of sufficient size to yieldingly suspend the cross-head G and all the parts connected therewith. At J is aeollar loosely mounted on shaft E and is connected by a rod J to a foot-lever K. On the outer projecting end portion of shaft E is firmly secured a roller L, whose peripheral surface is provided with an ornamental design in relief, as is usual in molding-machines adapted to applying composition to be molded into ornamental forms on straight strips suited to the manufacture of square picture-frames.

In Fig. 3 the tables M and M are shown with transverse slots N and N, in which are bolts P, which adjustably secure cross-pieces Q and Q to the tables. The top of each table is preferably recessed around the slot into which the head of the bolt is countersunk, so that it will not project above the surface of the table. Each end of each cross-piece is preferably halved or recessed, so as to fit under the table and be clamped in position by the nut upon the bolt, while the upper surface is even with the tops of the tables. By making the adjacent edges of the tables and the slots parallel with each other and having the recessed ends of the cross pieces fit squarely against the edges the cross-pieces are always held at right angles to the slots and the guides are in their proper places. Mounted on each cross-piece is a guide or stop in the form of a pivotally-mounted roller, such as R and R, adapted to revolve in a horizontal plane or in a plane at substantially a right angle to the plane of revolutions of large roller D and which. serve to limit the lateral movement of the picture-frame T. The guides R and R are usually mounted substantially in line with the longitudinal center line of shaft B.

The teeth of. the feed-roller D are preferably located substantially midway between the guides R and R and project far enough above the top of the table to form afeed-rack, which moves at right angles to a line drawn between the two guides and forces the portion of the frame between them forward in a straight line. The curvature of the projecting portion of the feed-wheel will cause the teeth upon each side of a line drawn between the two guides to engage with the frame to such a slight extent that the portions of the frame upon each side of said line can move in a slight curve, thereby enabling the machine to properly feet frames having irregu lar outlines or those having very short turns or curves. By locating the guides just far enough apart to permit the sides of the frame to pass theywill assist in guiding the frame by the slight frictional contact caused thereby.

It will be understood that the guides or stops R and B. may be made stationary and with rounded faces in contact with the stock, instead of rollers, for the reason that these parts serve simply to hold the picture-frame in position, yet not permitting it to rotate in such an irregular manner or with so many or such widely-variable centers of movement in a horizontal plane upon the table that the.

composition would be laid with such great irregularity as to ruin the work. A guide or stop only at one side edge, either at the inside or at the outside, of an irregular or even an ordinary long oval picture-frame would not be sufficient to serve as a guide even in the hands of a skilled workman; Two guides or stops placed substantially on line with and above the axial center of large feed-roller D, after many experiments, attain the very highest results in practice in covering with composition both round and long oval frames without but slightly changing the positions of the guides to suit the difference in the curves in the long oval frames. 7

To operate this machine, rollersD and L are separated by the resiliency of spring I to, the position shown in Figs. 1 and 2, when the oval frame-T may be placed in the position shown in Fig. 3, with the lowerface in contact with the lower roller and in engagement with the teeth. D thereon, the side edges of the frame being held laterally or limited in lateral movement by the guides R and R.

If now roller L is pulled down so that the side edges thereof are in contact with the top of the picture-frame, by pressing on foot'lever K and then the rollers L and D started in revolution in the direction indicated by arrows use in the machines for covering straight molding with ornamental composition.

It is obvious that the outer surface of an annular frame in revolution travels a greater distance than the surface at the inner edges thereof and that, seemingly, conical rollers could be used to some advantage; butsince the putty or composition with which the frames are covered is of a yielding or plastic nature it is mounted on the frames in practice in a satisfactory manner with the feed-and ornamenting rollers both substantially cylindrical, as shown. The lower roller receives most of the pressure upon the frame in revolving, so that it is not necessary to have the lower feed-roller of any greater width than the feed-teeth, which latter engage the frame at or near the center of width.

I claim as my in vention- 1. In a machine for directly mounting ornamental composition on frames, the combination, with a support provided with an impression-roller and means for operating the same, of two tables on the support, each of which is provided with a slot, two bolts in each slot, two cross-pieces between the tables,

theends of which extend under the slots and engage with the bolts, a guide projecting from the central portion of each cross-piece above the tops of the tables, and awheel' jonrnaled between the tables and the cross-pieces, the axis of which is substantially in alinement with the guides and the periphery is provided with teeth and projects above the tops of the tables.

2. In a machine for directly mounting ornamental composition on frames, the combination, with a support provided with an impression-roller and means for operating the same, of two tables on thesupport, the adjacent edges of which are parallel, each table being provided with a slot, parallel with its edge and having a portion of its top around the slot cut away, two cross-pieces between the tables, each end of each of which is halved and extends under the table and the top fits squarely between the tables and is even with the tops thereof, a bolt through each end of each cross-piece, the head of which fits within the recessed portion of the table and the nut clamps the cross-piece against the under side of the table, a roller-journaled at the central portion of each cross-piece so as to project above the tops of the tables, and a roller journaled between the tables and the crosspieces, the axis of which is substantially in alinement with the rollers on the cross-pieces and the periphery projects above the tops of the tables and is provided with teeth.

FRANK E. ADAMS.

Witnesses:

HENRY A. ORONSON, B. F. MANDELBAUM. 

